CAS OpenIR  > 中科院上海应用物理研究所2004-2010年
赵文恩; 黄进勇; 王文峰; 钱素平; 姚思德
Source Publication高等学校化学学报
Other AbstractThe interactions of carotenoids with NO·_ 2 were investigated by pulse radiolysis. Optical traces show bleaching of the ground-state absorption of β-carotene, zeaxanthin and canthaxanthin at 450 nm, and bixin at 460—510 nm. The transient absorption spectrum shows that the positive absorption attributed to the formation of carotenoid addition radicals cannot be observed in the range of 600—700 nm. It is suggested that carotenoids undergo more readily electron transfer with NO·_ 2 to yield the carotenoid radical cations. The rate constants for the reaction of β-carotene, zeaxanthin, bixin and canthaxanthin with NO·_ 2 obtained are 1.6×10 8, 2.41×10 8, 5.41×10 7 and 1.75×10 7 mol/(L -1·s -1), respectively.
Keyword类胡萝卜素 No·2 脉冲辐解 瞬态吸收
Indexed ByCNKI
Funding Project应物所项目组
Document Type期刊论文
Corresponding Author赵文恩
Recommended Citation
GB/T 7714
赵文恩,黄进勇,王文峰,等. 类胡萝卜素与二氧化氮自由基(NO_2~·)的反应[J]. 高等学校化学学报,2006(3).
APA 赵文恩,黄进勇,王文峰,钱素平,&姚思德.(2006).类胡萝卜素与二氧化氮自由基(NO_2~·)的反应.高等学校化学学报(3).
MLA 赵文恩,et al."类胡萝卜素与二氧化氮自由基(NO_2~·)的反应".高等学校化学学报 .3(2006).
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